Device for truing journals of locomotive driving-wheels



No. 751,945. PATBNTED FEB. 9, 1904. H. P. SOATGHARD & M. 12.. WATERS,DEVICE FOR TRUING JOURNALS 0F LOGOMOTIVEDRIVING WHEELS.

APPIJIUATION FILED OCT. 19. 1903. I

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v No. 751,945. PATENTED FEB. 9, i904.

H. F. SGATGHARD & M. B. WATERS. DEVICE FOR TRUING JOURNALS 0F LOUOMOTIVBDRIVING WHEELS.

APPLIGATIOH FILED 001. 19. 1903.

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No. 751,945. v PSTENTED FEB. 9, 1904.

H. P..SOATCHARD &M. B. WATERS. DEVIGE FOR TRUING JOURNALS 0P LOOOMOTIVEDRIVING WHEELS.

APPLICATION FILED OUT. 19. 1903. H0 MODEL. 3 SHEETS-SHEET 3.

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PATENT 'OFFICE.

HERBERT F. SCATCI'IARD AND MICHAEL B. WATERS, OF ROANOKE, VIRGINIA.

DEVICE FOR TRUING JOURNALS F LOCOM OTIVE DRIVING-WHEELS.

SPECIFICATION formingpart of Letters Patent No. 751,945, dated February9, 1904,

Application filed October 19, 1903. Serial No. 177,682. (No model.)

To all whom it may concern:

Be it known that we, HERBERT F. SGATOH- ARD and MICHAEL B. WATERS, bothcitizens of the United States, and residents of Roanoke, Virginia, haveinvented certain Improvements in Devices for Truing Journals ofLocomotive Driving-Wheels, of which the following is a the wheels to ashop. This object we attain worn after use.

by providing a portable cross-head traversing longitudinally on a framewhich is secured to the driving-wheels, said cross-head having aseparable and rotatable sleeve embracing the axle and carrying theturning-tool, which can be made to act upon either of the journals. Thecross-head also carries mechanism for traversing it and for rotatingsaid sleeve.

In the accompanying drawings, Figure 1 is a view illustrating ajournal-truing device constructed in accordance with our invention as itappears when applied to the driving-wheels and axle. Fig. 2 is atransverse section of the same on the line a; a, Fig. 1, and on a largerscale than said figure. Fig. 3 is a sectional plan view on the line 5 b,Fig. 2; and Fig. 4 is a plan view of one of the elements of the device.

Referring in the first instance to Fig. 1 of the drawings, 1 1represents. pair of locomotive driving-Wheels, and 2 the axle of thesame, said axle having just inside of each wheel a journal 3, which itis the purpose of our invention either to turn up true in the firstinstance or to true up after they have become Secured to thedrivingwheels is a frame comprising end bars 4 4 and a pair ofcross-rods 5 and 6, the end bars 4 having center screws 7, which engagewith the opposite ends of the axle 2 in line with the axis of the same.The frame comprising the driving-Wheels.

bars 4 and rods 5 and 6' is therefore mounted upon the driving-wheelstructure and is prevented from rotating by contact of said rods 5 and6, or either of them, with spokes of the Bars 4 of different lengths maybe used to suit the size and character of the driving-wheels, or thebars may have a 8 and 9 separable from each other, these mem-' bersbeing so formed as to provide a cylindrical chamber in which is mounteda separable two-part sleeve 10 11, said parts of the sleeve being boltedor otherwise suitably secured together and provided at the ends withflanges 12, whereby they are longitudinally confined to the cross-head,but are free to rotate therein and around the axle. The members of theseparable sleeve are centrally recessed for the reception of a combinedworm and bevel wheel 13, likewise by preference made in two parts inorder to facilitate its application to the sleeve and suitably securedto the latter. The bevel-toothed portion of the wheel 13 meshes with-abevel-pinion 14 on a spindle 15, which is mounted in suitable bearingsin the cross-head and is intended to be driven by any suitable form ofpower-actuated motor or by hand when such motor is not available. In thepresent instance the spindle is intended to be motor-driven and outersupport for the motor-casing is provided by a set-screw 16,

which is adapted to a threaded opening in a bracket 17, the latter beingmounted upon the lower member 9 of the cross-head, as shown in Figs. 2and 3. The motor is introduced between the set scr'ew 16 and the spindle15, the rotating member of the motor serving to drive said spindle. Themotor may be either an electric motor or a motor driven by air,

steam, gas, or other fluid, as may be found most convenient. Theworm-teeth on the wheel 13 mesh with a worm-wheel 18, which is adaptedto a suitable chamber in the lower member '9 of the cross-head and ismounted upon the lower end of a shaft 19, which passes upwardly throughthe tubular shaft or spindle 20 of a pinion 21, the upper end of theshaft 19 being threaded for the reception of a handled nut 22, whichbears upon the upper end of the tubular shaft 20, so that by tighteningsaid nut the worm-wheel 18 can be spur-wheel also meshes with a pinion25, likewise free to turn upon a stud depending from the frame 24. Thesaid frame 24 is mounted so as to be free to swing upon the shaft 20 andhas a stud 26 projecting through a segmental slot 27 in the upper member8 of the crosshead, the projecting portion of said stud 26 beingthreaded for the reception of a handled nut 26, whereby the frame 24 canbe caused to assume different angular relations to the shaft 20 and canbe secured in either of its different positions of adjustment. When theframe is in the position shown in Fig. 3, the spur-wheel 23 meshes witha rack 29, formed on or secured to the supporting-rod 6 of the fixedframe. Hence rotation of the spindle 15 would have the double effect ofimparting rotating movement to the sleeve 10 11 and causing thecross-head to travel upon the supporting-rods 5 and 6, the direction ofthis movement being dependent upon the direction of rotation of thespindle 15. By swinging the frame 24 so as to carry the spur-wheel 23out of engagement with the rack 29 and bring the pinion 25 intoengagement with said rack the direction of movement of the cross-headmay be reversed without reversing the direction of movement of thespindle 15. Hence a cutting-tool mounted upon the rotating sleeve can betraversed back and forth across the journal of the axle withoutinterfering with its continuous movement of rotation.

The separable sleeve 10 11 has at each end an adjustable tool-carrier30, guided on an extension 31 of the sleeve, so as to be movable fromand toward the axle, any suitable feed-screw device being employed forthus traversing the tool-holder and the latter being provided with anyavailable form of clamp for the tool. When one of the journals has beenproperly trued by means of a tool carried by the tool-holder at one endof the rotating sleeve, the tool is shifted to the tool-holder at theopposite end of the sleeve, and the cross-head is then shifted on itsguides, so as to cause said tool to act upon the opposite journal.

' The shaft 20 is provided with a hand-wheel 32, whereby the traversingof the cross-head may be effected by hand when desired, the worm-wheel18 in this case being first freed from its frictional connection withthe pinion 21.

The cross-rod 5 is applied to a bearing 33, adjustable on the under sideof the member 9 of the cross-head, so as to permit of the use of rods 5and 6, located at different distances apart.

Having thus described our invention, we claim and desire to secure byLetters Patent- 1. The combination in a device for truing the journalsof locomotive driving-wheels, of a frame, a cross-head mounted upontransverse rods of said frame, a separable toolcarrying sleeve rotatablymounted in said cross-head, and mechanism carried by the cross-head forrotating said sleeve, said mechanism having a projecting power-receivingspindle and an opposed support for a motorcasing, substantially asspecified.

2. The combination in a device for truing the journals of locomotivedriving-wheels, of aframe, across-head mounted upon transverse rods ofsaid frame, a separable tool-carrying sleeve rotatably mounted in saidcross-head, and mechanism for simultaneously rotating said sleeve andtraversing the cross-head upon its supporting-rods, said mechanismcomprising a combined worm and bevel wheel mounted on the sleeve, apower-receiving shaft with pinion engaging said bevel-wheel, a rack onone of the supporting-rods of the frame, and gearing interposed betweenthe worm-wheel and said rack, substantially as specified.

3. The combination in a device for truing the journals of locomotivedriving-wheels, of a frame, a cross-head mounted upon transverse rods ofsaid frame, a separable tool-carrying sleeve rotatably mounted in saidcross-head, and mechanism for simultaneously rotating said sleeve andtraversing the cross-head upon its supporting-rods, said mechanismcomprising a combined worm and bevel wheel mounted on the sleeve, apower-receiving shaft with pinion engaging said bevel-wheel, a rack onone of the supporting-rods, and gearing interposed between theworm-wheel and said rack, said gearing having as an element, a swingingframe carrying two spur -wheels either of which may, by movement of theframe, be caused to engage with the rack, substantially as specified.

4. The combination in a device for truing the journals of locomotivedriving-wheels, of

the supportingframe, the cross-head, the names to this specification inthe presence of tool-carrying sleeve, rotatably mounted theretwosubscribing Witnesses. 1n, and havmg a Worm thereon, a Worm-WheelHERBERT F. SUATOHARD.

meshing with said Worm, gearing driven by g 5 said Worm-wheel, and arack on one of the MICHAEL WATERS supporting-rods for the cross-head inmesh Witnesses: with said gearing, substantially as specified. R. C.ROYER, I

In testimony whereof We have signed our LAWRENCE S. DAVIS.

